Ronald Gene Koontz, 66, was killed at his Glen Arm, Maryland home on June 19, 2009. A former Towson High wrestling coach and Baltimore County schools administrator, he died from multiple gunshot wounds after his estranged wife, Mary Catherine Koontz, then 60 and living in Florida, returned to Maryland.

Despite severe injuries, Ronald Koontz pursued his wife out onto the front lawn and was able to restrain her until Baltimore County police arrived. Their 16-year-old daughter, Kelsey, was also targeted when Mary fired the gun at her but was not physically harmed. Mary Koontz was arrested at the scene.

The case went to trial where Mary Koontz’s defense raised an insanity plea while the prosecution argued anger and jealousy motivated the attack; voicemail messages to the daughter were played for the jury. After an eleven-day trial, the jury convicted Mary C. Koontz of first-degree murder and the attempted murder of her daughter. In August 2010 a judge sentenced her to life in prison without parole. Does anyone have information about the family’s life in Glen Arm or the events leading up to June 19, 2009?